Intensity of Polarised X-Rays

Nanoplasma Formation by High Intensity Hard X-rays

Using electron spectroscopy, we have investigated nanoplasma formation from noble gas clusters exposed to high-intensity hard-x-ray pulses at ~5 keV. Our experiment was carried out at the SPring-8 Angstrom Compact free electron LAser (SACLA) facility in Japan. Dedicated theoretical simulations were performed with the molecular dynamics tool XMDYN. We found that in this unprecedented wavelength ...

Subject headings: galaxies: general—galaxies: spiral—X-rays: general—X-rays: galaxies—X-rays: ISM

We present results from the analysis of deep ROSAT HRI and PSPC observations of the spiral galaxy M81. The inferred total (0.5–2 keV band) luminosity of M81 is ∼ 3×10 ergs s, excluding the contribution from identified interlopers found within the D25 ellipse. The nucleus of the galaxy alone accounts for about 65% of this luminosity. The rest is due to 26 other X-ray sources (contributing ∼ 10%)...

Diffraction of X-rays

Laser-Electron Storage Ring as a Compact Source of High-Intensity X-rays

Recent progress in high power laser development has attracted a growing interest in generating x-rays by Compton (or Thomson) backscattering an intense laser pulse off a high energy electron beam [1,2]. If λ L is the laser wavelength, γ is the electron energy in units of its rest mass mec , and θ is the angle of the scattered x-ray photon with respect to the direction of the electron trajectory...

Obserbation of High Intensity X-rays in Inverse Compton Scattering Experiment

We report the first results of high intensity x-ray generation using Inverse Laser Compton scattering. This experiment was carried out by a US-Japan collaboration at the Brookhaven National Laboratory (BNL) Accelerator Test Facility (ATF) in September 1999.The ATF is an accelerator and beam physics user facility. The 3.5 ps x-ray pulse at 6.5 keV, containing ~107 x-ray photons was generated by ...